Rhymes with 'aghast'
Scots Language Rhymes
cast
        (Scots for multiple meanings)
Scottish-English Rhymes
assed
                blast
                brassed
                cast
                caste
                fast
                gassed
                glassed
                grassed
                last
                massed
                mast
                passed
                past
                vast
                aghast
                amassed
                bypassed
                contrast
                forecast
                (verb)
harassed
                lambast
                miscast
                outcast
                (verb)
outclassed
                outlast
                precast
                (verb)
recast
                (verb)
trespassed
                typecast
                colourfast
                flabbergast
                hard-and-fast
                opencast
                overcast
                overpassed
                unsurpassed
                ecclesiast
                Elastoplast
                enthusiast
                iconoclast